stillman



, with@ States.

@sind @tithe ALEXANDER GARMIOHEL, OF VESTERLY, RHODE ISLAND, ASSIGNOR TOkHIMSELF, `JONATHAN P. STILLMAN, AMES S'IILLMAN, ALBERT STILLMAN, ANDTHOMAS V,

STILLMAN, OF SAME PLACE.

Latas Paten: No. 102,772, daad May 1o, i870.

IMPROVEMENT IN SPOOLSUOR BOBBINS.

Nwe-

To all whom it may concern Be it known that I, ALEXANDER GARMICHEL, ofWesterly, in the county of Washington and State of Rhode Island, haveinvented certain new and useful Improvements in the Construction ofSpools and Bobbins; and I do hereby declare that the following is a fulland exact description thereof.

My invention is intended to give increased strength and durability tothe articles with the same weight,

or 'about the saine, as when entirely of wood, and with but a slightincrease in theA cost. It is of especial advantage in avoiding theroughness experienced with the ordinary wood spools and bobbins, whenthey are partially worx1.out,and which frequently results incatchiugffineryarns or ratings. and causing them to break.

I cover the peripheries and inner faces of the rims orilanges with acasing of thin metal, or analogous material, which wears smoothly.

I will proceedito describe what I'consiiler the best means ot' carryingout my invention.

The accompanying drawings forni a part of this specication.

Ifigure 1 is a side view, partly in section, ofthe entire spool.

Figure 2 is a'section of the woodportion only of head. This is anordinary form and construction adapted to be covered, but to which thecover has no yet been applied.

Figure 3 is a view of the metal vwithl a portion broken away.v It showsthe material of the cover when first cut out, and while in a planecondition.

Figure 4 shows the same after one operation of the dies, notrepresented.

Figure 5 shows the same after the wood portion and the covering materialhas been applied together, but before being finally compressed togetherso as to fold the covering upon the wood.

Figure 6 shows the same after the covering is partly folded down uponthe wood. 5

By turning now again to iig. l, it will appear that the covering isthere vclosely foldeddown upon the wood. i

Similar letters of reference indicate like parts in all the figures.

A is 4the body or barrel, and A B1 B2 are two thicknesses of wood gluedwith their grain crossing eachother, which together form the head. lheyare secured vto -the barrel preferably by both screw-threads and glue.The outer edge of the flange or head is rounded. The two heads may bealike, or one may be thicker, or in any wayvaried from the other, as maybe desired. What are termed bobbins are usually analogous in structure,but with onlyone head. The heads may be of various kinds of wood, but Iesteem it important that they are made primarily of wood, in twothicknesses glued'to- Y getlier, the grain of the wood in one thicknesscrossing the grain of the wood in the other thickness, as

above described.

So far as is yet described the structure is identical with those longknown, and in common use.

Toenoase the inner faces and periphery of a head,

I take a sheet of tinned iron, cut in a circular form,

and haring a hole in the center a little less in diameter than theexterior of the barrel or body A of the spool.A I strike this dat diskof iron between convois and concave dies, so as to turn up theperiphery. I lit into this the wood head of the bobbin, and then, bymeans of one or more other dies, bend the' turnedup edge firmly over,and-compress it into the wood of the head, in the position representedby d 1n iig. 1.

This cased head is now ready to be ijrinly united to the barrel'A by theordinary, or any suitable means, andfuldls admirably the functions,notonly of strengthening the union of the'two thicknesses B1 B together,

aiding to defend the entire head against splitting or other breakage incase of falling upon the floor, or other'violence, but also of insuringa smooth inner face to rub against the yarn in the act of being drawnon".

In the use of spools or bobbiiis for some purposes, the yarn is drawndirectly over the end. -In suoli case it is highly important, not onlythat the inner face of the heads, vbut also the entire periphery of thehead shall be smoothly cased'. My casings, by extending not only overthe entire inner faces, but also oyer the entire periphery, fulfil thisend Very perfectly in addition to the others before enumerated.

It will be observed that my casing, by extendinginward to and alittlewithin the barrel,fc'0vers` the whole inner surface of the head, andavoids the risk of thread or rovings being caught on the inner edge,which, in-use, is liable to get rough and to proJect. Also, that by theembracing fof both thicknesses ct my crossed wood at the periphery ofthe head, they are aided in holding firmly and inseparably together.

And also, that being struck up and compressed on the wood, as explained,the damage diie to the heat of casting on a metal casing is avoided.

I claim* A spool or bobbin, haring a'head of wood in two thicknesseswith the grain crossed, and a hard casing oi' metal extending over theentire inner `surface and orer the periphery, so as to coat andstrengthen the surfaces and bind the wood together, when the casing isformed and applied without injury to the wood,'and in the'manner and fortl1e` purposes herein set forth.

'In testimony whereof I have hereunto set my name in presence of twosubscribing witnesses.

ALEXANDER OARMIOHEL.

Witnesses:

R11. Lumen, J. W. STILLMAN.

